72187949 is an odd 8-digits composite number following 72187948
and preceding 72187950 . In scientific notation, it is written as 7.2187949 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 71004480 positive integers (up to 72187949) that are relatively prime to 72187949.
72187949 has 4 divisors, whose sum is 73371420
The reverse of 72187949 is 94978127
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
seventy-two million one hundred eighty-seven thousand nine hundred forty-nine
Scientific notation
7.2187949 × 10^7
Engineering notation
7.2187949 × 10^6
Prime Factorization
61 × 1183409
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72187949
Product of the distinct prime numbers
The prime factorization of 72187949 is 61 × 1183409.
Since it has a total of 2 prime factors.
10 , 9 , 58 , 9 , 878 , 114 , 581 , 6935 , 36450 , 378 , 226382 , 685221 , 8979530 , 4464905 , 26414492 , 71988171 , 765091118 , 344319838 , 8239103043 , 7661679028
n×2
144375898
n×3
216563847
n×4
288751796
n×5
360939745
n÷2
36093974.5
n÷3
24062649.666667
n÷3
18046987.25
n÷5
14437589.8
n2
5211099980826601
n3
3.7617861964981E+23
n4
2.7155563010171E+31
n5
1.9603043976445E+39
2 √n
8496.349157138
3 √n
416.37844052541
4 √n
92.175642971113
5 √n
37.298635183099
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72187948
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72187949 can be divided by 4 positive divisors.
The sum of these divisors (counting 72187949) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010011011000000000101101
3
Ternary
12000211112020202
4
Quaternary
10103120000231
5
Quinary
121440003244
6
Senary
11055123245
8
Octal
423300055
10
Decimal
72187949
12
Duodecimal
20213525
16
Hexadecimal
44d802d
20
Vigesimal
12b39h9
36
Base36
16z8kt
md5
d16a41ed885787ad86bdbe1b7188758e
sha1
9d19d4461d6b1a6639d96b0dd97f4bb91e86f703
sha256
88c84fa88f009fa1322fa445f3131818198ba20dfa67e864bcc6ba02190dcf97
sha512
5f2cd6a785499b22ea4cd1dff2ef8a61e25a30fee4d65f3d7b5a448468763173f7a929e5e21d7d629c7de6e3244458250ee002d78ef83a2ae01d06079b598e8f
ripemd-160
0cc3ea32f08b5534e69b209b1169498b7c25628c
Diameter
144375898
Circumference
453570260.51223
Area
1.6371153416887E+16
Volume
1.5757333172392E+24
Surface area
6.5484613667547E+16
Circumference
453570260.51223
Perimeter
288751796
Area
5211099980826601
Diagonal
102089176.5157
Surface area
31266599884959606
Volume
3.7617861964981E+23
Space diagonal
125033195.36219
Perimeter
216563847
Area
2.2564724825282E+15
Altitude
62516597.681095
Surface area
2.2564724825282E+15
Volume
4.4333075481963E+22
Height
34029725.505232